Precision Optical Tube Assemblies for Optical Communications

 
From Microscope Lenses to Astronomical Telescopes — Solving Your Toughest Optical Machining Challenges
Dakings specializes in high-precision optical tube manufacturing, addressing critical pain points: tight concentricity, oxidation control, and reliable light-blocking finishes. Our expertise spans 5-axis CNC machining, custom surface treatments, and strict quality validation to meet the demands of telescopes, microscopes, and high-end optical devices..

Optical Machining Capabilities

Advanced Manufacturing for Optical Tubes
  • 5-Axis CNC Machining
    Handles complex geometries (thin-walled tubes, 0.5mm thickness) with minimal deformation; ensures sliding groove smoothness (no jamming) and precise angles (45°/60°/90° lens mounts, ±0.01° tolerance).​​​​​​​
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  • Light-Blocking Thread Machining
    High-precision threading for light trapping, with strict dimensional control to avoid rotation noise or jamming in telescopic/microscopic systems.​​​​​​​
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  • Anti-Oxidation Processes​​​​​​​
    Pre-machining solution treatment for 2A12 aluminum; deep cryogenic treatment post-roughing to prevent deformation in extreme environments.​​​​​​​
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  • Surface Finishing​​​​​​​
    Specialized anodizing (matte black for aluminum) and vacuum plating (black nickel for titanium/Invar) to meet light-blocking requirements without coating peeling.​​​​​​​
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 Applications
Optical Tubes for Critical Applications
Astronomical Telescopes
Microscopes
Industrial Cameras
Military Optics
Why Choose Us
Expertise in Optical Precision: Why Dakings Stands Out

Project Expert Team

 
  Our team averages 10+ years in optical component machining, operating 5-axis CNC centers to handle complex geometries—thin-walled tubes (0.5mm thickness) and intricate sliding grooves—with micrometer-level precision (±0.002mm). We specialize in solving optical-specific challenges, from minimizing deformation in 2A12 aluminum to achieving strict angle tolerances (±0.01°) for lens mounts.
 

Customized Solutions

 
We tailor services to your optical device needs: from design optimization (anti-oxidation for 7075 aluminum) to scalable production. Whether prototyping microscope tubes or mass-producing telescope components, we adjust processes to meet light-blocking requirements, sliding groove smoothness, and thermal stability demands—accelerating your product launch.
 

Strict Quality Control

 
Our quality process spans the entire lifecycle: raw material inspection (certified from Southwest Aluminum/Steel Institute), in-process checks for concentricity (≤0.005mm), and surface testing (no streaks in matte black anodizing). Every step aligns with optical industry standards, ensuring components perform reliably in research, military, or industrial settings.
 

Precision Inspection

 
We use industry-leading tools—Zeiss & Hexagon CMMs, Marr optical comparators, and Mitsutoyo gauges—to verify tight tolerances (geometric tolerances ≤0.005mm) and surface quality (scratch-free, uniform finishes). With a 99.5% qualification rate, our data guarantees your optical tubes meet assembly and performance requirements.
 

Materials & Surface Treatments

Materials & Finishes for Optical Performance
Key Materials
Surface Treatments
Rigorous Inspection for Optical Precision
1
Dimensional Checks
CMM and optical comparators verify critical dimensions (e.g., concentricity ≤0.005mm, angle tolerance ±0.01°).
2
Surface Quality
3x-10x magnification inspection for scratches, burrs, or coating defects in light-blocking finishes.
3
Functional Testing
Assembly trials to validate smooth sliding (no jamming) and rotation stability (no noise).
4
Material Validation
Chemical analysis for raw materials (e.g., 2A12 aluminum composition) and mechanical testing (hardness, tensile strength).
FAQs

How do you prevent oxidation and material streaks in 2A12/7075 aluminum optical tubes?

A: We address aluminum oxidation through a two-step process: ① Pre-machining solution treatment to stabilize the alloy microstructure; ② Post-roughing deep cryogenic treatment (-80°C) to relieve internal stress. For surface finish, we use precision anodizing with strict bath chemistry control, ensuring uniform matte black coatings free of streaks. All 2A12/7075 components undergo 48-hour salt spray testing to validate corrosion resistance.

What ensures the concentricity of assembled optical tubes and smooth operation of sliding grooves?

A: Concentricity (≤0.005mm) is achieved via 5-axis CNC machining with in-process CMM checks, aligning critical axes during roughing and finishing. For sliding grooves, we optimize toolpaths to maintain consistent wall thickness (±0.002mm) and use diamond-tipped tools for burr-free surfaces. Post-machining, we conduct functional tests—sliding the tube 500+ cycles under load—to verify no jamming or uneven movement.

How do you guarantee light-blocking finishes (e.g., matte black coatings) on optical components don't peel or degrade?

A: Our light-blocking process includes: ① Surface preparation (plasma cleaning to remove oils/contaminants) for strong coating adhesion; ② Vacuum plating (for titanium/Invar) or hard anodizing (for aluminum) with controlled thickness (8-12μm). We validate via cross-cut adhesion tests (ASTM D3359) and 10,000-cycle wear testing, ensuring finishes resist peeling even in repeated assembly/disassembly or extreme temperature shifts (-40°C to 60°C).

Let's get started on your Optical Communications

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Contact Us

Address:Building A,BaiTong Industrial Park,Bao’an 
District,Shenzhen Guangdong,China, 518104
 
Tel:+86-18811881233
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